Arcellx appoints Andrew Galligan and Kristin Myers to board; Derek Yoon resigns

Arcellx, Inc.

Derek Yoon resigned from the board effective March 18, 2025; no disagreements.
Board size expanded from 7 to 8; Galligan and Myers appointed as Class I and III directors.
Galligan brings financial leadership (ex-CFO of Nevro, Ooma); Myers adds payer/provider expertise (COO of Blue Cross Blue Shield Assn.).
New directors receive $50k annual retainer, $850k initial option grant (3-yr vest), and $425k annual option grant.
Company highlights anito-cel progress and expects commercial launch in 2026.

item 5.02 item 7.01 item 9.01

Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Appointed

Andrew Galligan

Director

ACLX · Arcellx, Inc.

Effective: 2025-03-18
Filed: March 20, 2025, 7:59 PM ET

On March 18, 2025, the Board appointed Andrew Galligan to fill one of the two vacancies on the Board, effective March 18, 2025, as a Class I director

Appointed

Kristin Myers

Director

ACLX · Arcellx, Inc.

Effective: 2025-03-18
Filed: March 20, 2025, 7:59 PM ET

On March 18, 2025, the Board appointed Kristin Myers to fill one of the two vacancies on the Board, effective March 18, 2025, as a Class III director

Departed

Derek Yoon

Director

ACLX · Arcellx, Inc.

Effective: 2025-03-18
Filed: March 20, 2025, 7:59 PM ET

On March 17, 2025, Arcellx, Inc. (the “Company”) was notified by Derek Yoon that he intended to resign from the Company’s board of directors (the “Board”) and from the Board committees on which he served.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

Andrew Galligan was appointed as Director at Arcellx, Inc..

Action: appointed
Role: Director

Exact text from the filing

On March 18, 2025, the Board appointed Andrew Galligan to fill one of the two vacancies on the Board, effective March 18, 2025, as a Class I director

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Kristin Myers was appointed as Director at Arcellx, Inc..

Action: appointed
Role: Director

Exact text from the filing

On March 18, 2025, the Board appointed Kristin Myers to fill one of the two vacancies on the Board, effective March 18, 2025, as a Class III director

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Derek Yoon resigned as Director at Arcellx, Inc..

Action: resigned
Role: Director

Exact text from the filing

On March 17, 2025, Arcellx, Inc. (the “Company”) was notified by Derek Yoon that he intended to resign from the Company’s board of directors (the “Board”) and from the Board committees on which he served.

View on SEC.gov

Arcellx, Inc. filing history →

Source: SEC EDGAR

accession 0001193125-25-058978

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